The S&P 500 and Nasdaq have both felt pressure as shares of major tech companies came under pressure Monday. Investors continue to keep a close eye on rising Treasury yields, which heighten worries about valuations, particularly for some of the market's most highly valued names.

Big Tech stocks were weighing on the S&P 500 index on Monday, with the megacap chip maker Nvidia Corp. posting the sharpest losses. The Roundhill Magnificent Seven ETF — which holds seven Big Tech stocks including Nvidia Corp.

The S&P 500 jumped 1% on Friday, Jan. 17, 2025, heading into the long weekend on a high note as prospects rebounded for additional interest-rate cuts in 2025.

The current top five companies in the S 500 account for a greater chunk of the index than at any time over the last 60 years.

The S&P 500 added 0.1% on Tuesday, Jan. 14, as tame wholesale inflation data provided a positive signal ahead of Wednesday's consumer price report.

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The S&P 500 edged higher while the Nasdaq dipped after a volatile session on Tuesday as investors gauged inflation data and braced for quarterly earnings reports to justify stock valuations and the strength of the U.

The S&P 500 must close above 5,881.63 on Wednesday in order to flash a bullish signal that stocks can keep rallying for the rest of year. Wall Street strategists at Fundstrat and Bank of America ...

Bets against communication services stocks fell in December compared to the end of November, with Charter Communications (CHTR) being the most shorted stock in the sector and Google-parent Alphabet (GOOG) taking the spot for the least shorted.

Artificial intelligence (AI) was a market-driving theme last year, with AI stocks helping the S&P 500, the Nasdaq, and the Dow Jones Industrial Average each soar in the double digits. Companies selling AI tools and services saw earnings climb -- and investors piled into these players.

Digital innovations in the field of artificial intelligence (AI) drove tech-focused companies to new records on the stock market.

US stock market's performance as reflected in the Nasdaq 100 index, remains closely tied to the fortunes of Magnificent Seven companies.